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Chapter 4: Basic Analyzer Operation
• TOC Limit — The alarm is triggered when the TOC level exceeds the TOC value (in PPB) as
determined by the last system suitability verification.
• Cond Limit — The alarm is triggered when the conductivity level exceeds the limit specified for
the sample’s temperature in the currently selected pharmacopeia.
• Meas. Done — The alarm is triggered for 2 seconds when the Analyzer finishes a measurement
cycle and returns a reading.
• Limits — The alarm is triggered when measurements exceed the TOC limit or the conductivity
limit.
• Break In — The alarm is triggered after five unsuccessful log in attempts by a single User ID. See
“Reactivating Inactivated User Accounts” on page 109 for more information.
5. Press the Menu button when you are done.
While the Analyzer is running system protocols, such as calibration, only the alarms for Error/Warning ,
Power Fail , and Break In are in an active monitoring state.
Using the Ethernet Connection and Modbus
When exporting data to the Ethernet port, the Analyzer uses the Modbus communication protocol (port 502).
Before data can be exported via Ethernet, you must enable Modbus and configure the Analyzer's IP address
(refer to Figure 16 on page 83). The connection can be made using DHCP or a static IP address.
1. Select the I/O tab.
2. Press the Modbus button.
• Press the Modbus button and select Enabled .
• Press the Method button and select either DHCP or Fixed . If you select Fixed , press the IP Address
and IP Mask buttons and enter the appropriate addresses.
3. Press the Back button.
Note:
You may need assistance from your network administrator or information technology
(IT) department to set the IP address correctly for your network